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Originally posted by Setharoo
reply to post by Reneau
So are you saying that as soon as the new mass is created the gravity will reach out across space and connect instatly? I thought that nothing is faster than the speed of light?
On the surface of the Earth, all objects fall with an acceleration of somewhere between 9.78 and 9.82 m/s² depending on latitude, with a conventional standard value of exactly 9.80665 m/s², (approx. 32.174 ft/s2).
m is the mass of an object,
r is the distance from center of the object to the location we are considering,
r^ is the unit length vector from center of the object to the location we are considering,
G is the gravitational constant of the universe.
would antimatter have antigravity properties hmmm...
Originally posted by imd12c4funn
Have you ever mishandled an object and it slips your grip and gravity takes over drawing it towards the ground?
Originally posted by sardion2000
General relativity predicts G = c. That is, the Speed of Gravity is equal to the Speed of Light.
The speed of gravity can be calculated from observations of the orbital decay rate of binary pulsars PSR 1913+16 and PSR B1534+12. The orbits of these pulsars around each other is decaying due to loss of energy in the form of gravitational radiation. The rate of this energy loss ("gravitational damping") can be measured, and since it depends on the speed of gravity, comparing the measured values to theory shows that the speed of gravity is equal to the speed of light to within 1%.  (However, measuring the speed of gravity by comparing theoretical results with experimental results will depend on the theory; use of a theory other than that of general relativity could in principle show a different speed, although the existence of gravitational damping at all implies that the speed cannot be infinite.)
Originally posted by pluckynoonez
mmm...physics class, some time ago:
9.8 meters per second per second.
Originally posted by CuriosityStrikes
It has been said that energy cannot be turned into matter, or that it no longer is, I thought E=MC2, does this not work both ways around, although not currently possible to us to turn vast amounts of energy into small amounts of matter is it not theoretically possible?
Energy is never lost or created but changes forms right? Is matter not one of the forms energy can take?
Maybe I am wrong, I am interested to find out.
Experimental observation would elucidate how otherwise massless elementary particles nevertheless manage to construct mass in matter. More specifically, the Higgs boson would explain the difference between the massless photon and the relatively massive W and Z bosons. Elementary particle masses, and the differences between electromagnetism (caused by the photon) and the weak force (caused by the W and Z bosons), are critical to many aspects of the structure of microscopic (and hence macroscopic) matter; thus, if it exists, the Higgs boson is an integral and pervasive component of the material world.
The Higgs mechanism, also called the Brout-Englert-Higgs mechanism, or Higgs-Brout-Englert-Guralnik-Hagen-Kibble mechanism, or Anderson-Higgs mechanism, is a form of superconductivity in the vacuum. It considers all of space filled with a relativistically invariant quantum fluid called the Higgs field, whose motion prevents certain forces from propagating over long distances. Part of the Higgs field mixes with the force-carrying gauge fields to produce massive gauge bosons, while the rest of the Higgs field describes a new particle, called the Higgs boson. The range of the force and the mass of the gauge bosons are inverses in natural units, but the mass of the Higgs boson is different and depends on the details.
The mechanism is the only way elementary vector particles, like the
can have a mass. Interactions with the associated Higgs boson gives mass to the quarks and leptons in the standard model. The Higgs mechanism is an example of tachyon condensation where the tachyon is the Higgs field.